Water-filter



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(No Model.) I'

WATER FILTER.

P'anzentfn` June 29 AW m E.

ALOIS AUFRIOHTIG, OF STa LOUIS, MISSOURI.

waren-Fares.

SPECIFICATION forming part of Letters Pat-ent No; 585,497, dated June29, 1897'. c

Application tieinecember 24,1396. strain. 616,848. maman.)

To aZZ` whom it may concern,.-

Be it known that I, ALoIs AUFRICHTIG, a citizen of the United States,residing at ,the city of St. Louis, in the State of Missouri, haveinvented a certain new and useful Improvement in Water-Filters, of whichthe following is a full, clear, and exact description, reference lbeinghad to the accompanying draw-1` in'gs, forming a part of thisspecification.

My invention relates to that class of Wateriilters employing perforatedfiltering-cylinders; and my invention consists in features of noveltyhereinafter fully described, and pointed out in the claims.

Figure I illustrates a vertical section taken through the shell of thelter and showing the interior structure, pantin section and part inelevation. l Fig. II illustrates a horizontal section taken on line Illl, Fig. l. Fig. III illustrates a horizontal section taken'on` line HIIII, Fig. I. Fig. IV illustrates a vertical section taken centrallythrcugh one of the outer iiltering-cylinders A Fig. V illustrates a veritical section taken centrally through one end of the centralfiltering-cylinder. FigVI illustrates a cross-section of one of theinlet spray Water-pipes.

ln the drawings,l designates the filter-tank, and 2 the supplypipe,provided with a valve 3. Leading from the tan-lr at each end areoutlet-pipes 4, provided with valves V5. Portions -of the outletspipes iare screw-threaded Where they pass through the'tank, and Watertightconnection is formed byin'cans of packing-nuts 6. p

7 designates au `outer inlet spray-pipe' connected to the supply-pipe 2and having rows of oblquely-radial series of perforations 8 in its underside, the perforations of one row permitting a flow of Water toward theshell of the filter and the perforations of the other row permittingallow of water inwardly against the ltering-cylinders.

9 designates an inner perforated spray-pipe, the perfor-ations in saidpipe being located in a similar manner to those in the pipe 7. By meansof the spray-pipes 7 and 9 Iain enabled to direct the iloW of Water inthe filter in down Wardly-diverging directions, so that the waterreaches allparts of the filtering-cylinders the shell of the iilter.

1C designates the centrallydocated filter- 4of perforatedv tubes 17.

ing-cylinder, and 11 the'outer surrounding filtering-cylinders. Thecentral cylinder is provided with a perforated tube 12,` having openings13, leading into the radial channels 14 of spiders 15, located at each'end of the cylinders. The tube l2 extends through the center `of thespider 15 and is connected to the outlet-'pipes 4L at each end of thecylinder 10. Close joints between the cups 15:L of the spiders and thefiltering-cylinders at each end are accomplished by nuts 16,screw-threaded to the tube 12. The outer ends of the spiderarms areprovidedwith cups 15b, that receive the ends-0f the outerfiltering-cylinders l1. The arms of the spider 15 at the upper end ofthe filter are screwethreaded upon the interior of their ends andreceivethe upper ends The lower ends of said tubes 17 each contain anopening 18, permitting passage of Water from the interior to the radialtubes 17 of the channels `of the lower spider, the lower ends of thetubes 17 being closedby cap-nuts 19.

The construction of theliltering-cyliuders, both central and outer, aresimilar and are composed of inner sleeves 2O of asbestos cloth oranalogous material surrounding the perforated tubes, next to which is afilling 21 of asbestos fiber or analogous material. The filling/21 issurrounded by a perforated sheetmetal sleeve 22, and the whole isincased by a jacket 23 of asbestos cloth or analogous material.

The Water entering through the su ppl y-pipe 2 is discharged from the'spray-pipes 7 andi)V in the interior of the lilter, and, percolatingthrough the cylinders 11, flows from the interior of the tubes 17through the channels 14 of the spiders 15, and thus reaches the tubesI2, entering said last-mentioned tubes through the openings 13 therein.lThe water percolatingthrough the cylinder l0 enters directly into thetube 12. From thetube 12 the ltered Water may be drawn olf througheither of the outletpipes 4.

24 designates a reservoir located on top of the filter-tank, in which afloat 25 operates. A valve 24a controls the passage to said reservoir.The upper end of the float 25.is pivoted to vone end of a rocking lever26, supported. in a bracket 27. The Opposite end of. said lever 26 has.connected to it one endet a rod 2S the opposite end of said rod beingply-pipe valve pivotally connected to the arm 13 ofthe sup- 'lhis Iloatconnection with the siip1lypipe valve causes the supply-pipe valve to beclosed by the iloat rising when the filter-tank has become filled andthe water has raised into the reservoir 2l. IThe ob'- Iiect-ol' thisarrangement is to prevent the acccssof air into the 'lilter-tank, whichwould cause the water to become foul therein. \Vhen the supply-pipovalve is closed, the iiltration of the water proceeds, but isaccomplished merely by gravitation. As soon as the water has escaped toany extent from the filter-tank the supply-pipe valve again opens by thefalling ofthe float actuating it and water is again admitted int-o thelilter-tank.

' `When it is desired to employ the filter under pressure, the rod 2S isdisconnected from the arm 3 of the valve 3 and the valve 24 isclosed, atwhich time, with the valve 8 open, the water is free to flow into thefilter and out through either of the outlet-pipes i after filtration.

With the employment of the perforated inlet-pipes located above thefiltering-cylinder and having perforations arranged to permit a flow ofwater in diverging directions the filter maybe readily cleansed,as thediverging streams of Water from the inlet-pipe reach the different partsof the iilterii g-cylinders and the interior of the tank.

29 designates a pipe located inthe bottom of the filtering tank "andprovided with a valve 30. When it is desired to cleanse the filter, thevalve 30 is opened and any accumulations of mud or dirt may be withdrawnfrom the filter-tank. i

,'I claim as my inventionl 1. A water-filter comprising atank having aninlet-opening, a central perforated outlettube formed with upper andlower inlet-openings and extending through the heads of the tank, theupper and lower. spiders each having central and end cups and radialchannels connecting the end cups with the inlet-openings of theoutlet-tube, the central perforated cylinder and filtering materialsurrounding the outlet-tube and seated in the central cups, theperforated end tubes connecting the end cups and the perforatedcylinders and filtering material surrounding the perforated end tubesand seated in the end cups; substantially as described.

2. A water-filter comprising a tank having a supply-pipe near its upperhead, a central perforated outlet-tube formed with upper and lowerinlet-openings and exteondiug through the heads of the tank, the upperand lower spiders each having central and end eu ps and radial channelsconnecting the end cups with 'the inlet-openings of the outlet-tube, thecentral perforated cylinder and filtering material surrounding theoutlet-tube and seated in the cent-ral cups, the perforated end tubesconnecti ng the end cu ps, the perforated cylinders and filteringmaterial surrounding the perforated end tubes and seated in the'endcups, the outer spray-pipe having oblique series of radial perforationsand connected With the supply-pipe, and the inner spray-pipe havingoblique series of radial perforations and connected With the outerspray-pipe; substantially as described.

3. The combination of the tank having a supply-pipe, a perforatedoutlet-pipe extending through the heads'of the tank, a filtering devicesurrounding the outlet-pipe, a valve having an arm and located in thesupply-pipe, an open-top reservoir having a bracket and connectedthrough the upper head of the tank, a lever pivoted to the bracket andon necting the arm of the valve With lever; substantially as described.

`ALOIS AUFRICHTIG.

In presence of- E. S. KNIGHT, A STANLEY SroNnR.

lwhich the float is suspended, and a rod eon-

